Tank-float.



P. M. STEVENS. TANK FLOAT.

APPLICATION FILED AUG. 30 1905,

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Patented June 8,1909.

ITED STATES PATENT FIGE.

FREDERICK M. STEVENS, 0F WATERBURY, CONNECTICUT, ASSIGNOR TO SCOVILLMANU- FACTURING COMPANY, OF WATERBURY, CONNECTICUT, A CORPORATION OFCON- NECTICUT.

TANK-FLOAT.

Patented June 8, 1909.

Application filed. August 80, 1905. SerialNo. 276,891.

To all whom it may concern:

Be it known that I, FREDERICK M. STEVENS, a citizen of the UnitedStates, residing at Waterbury, in the county of New Haven and State ofConnecticut, have invented a certain new and useful Im rovement inTank-Floats, of which the fol owing is a full, clear, and exactdescription.

The sheet copper balls used as floats in water-closet and other tanksfor automatically closing the tank-filling valves, are commonlyfurnished to the trade in halves, ready to be closed andsolderedtogether, and the spud to receive the operating lever or rod is thensoldered on. Spuds have been applied also by a rivetin or heading-upprocess.

The object oft is invention is to provide a spud for such floats, whichmay be secured in place against turning, before the halves are united.

The invention stated specifically consists of a tank float, having aspud provided with one or more projections arranged inside the float andexpanded, swaged down or riveted down upon an inside washer, as I willproceed now more particularly to set forth. and finally claim.

In the accompanying dra s illustrating the invention, in the severalviews of which like parts are similarly designated, Figure 1 is a sideelevation with the lower part in transverse section. Fig. 2 is an enlared vertical section of one side of the float. l ig. 3 is an enlargedvertical section of the other side of the float. tion of one form ofspud detached, and Fig. 5 is a longitudinal section of another form ofspud detached. Fig. 6 is a cross-section of the lower part of one of thehalves of the float showing a modification in the manner of attachingthe spud. Fig. 7 is a perspective view of another form of spud. Fig. 8is a longitudinal section of the s ud of Fig. 7. Fig. 9 is a sectionsimilar to i 6 showing the spud-of Figs. 7 and 8 applied. and also'showing a modification in the construction of the lower portion of thefloat.

The two halves 1' and 2 ofthefloat are alike, and each comprises a hemisherical shell of copper or other non-corrodib e metal or substance,having half of its edge provided with a plain, straight flange 3projecting therefrom at right an Ice to its axis, and a pocket-flange 4similar y projecting from the other half, so that when these halves arein- Fig. 4 is a longitudinal secvertedly arranged and their flangededges brought into parallel planes and the halves then moved toward eachother, the plain flanges willslide into the pocket-flanges of therespective halves, after which these pocket-flanges are closed down uponthe plain flanges and solder is applied to the joint thus formed tosecure it an make the joint fluid-tight.

Before the halves are united, the spud 5 is applied to one of them.Various forms of .spuds and means of attaching them are own. All ofthese spuds, however, are

alike in having a shank 6 screw threaded internally at 7 a sufficientdepth to receive a rod or lever by which the float isappli'ed for use.

Referring to Figs. 1,4, 6, 7, 8 and 9, the

shank terminates in a solid head having a side u on which thespud-projectipn is riveted own, and suchwasher or reinforce is shown at11 in Figs. "1, 6 and 9. The shell and the washer'are perforated for thepassage of the projection;

Instead of using onepro'ectiou, a number of projections may be use astwo, in Figs. 7, 8 and 9, anddesignated 12, and the advantage of usingtwo or more projections is t at the tendency of thespud to turn when erod is. screwed home is obviated. The projections 12, also, may becupped or hollowed out at their ends to facilitate the expanding,

swaging down or riveting of the projections when applying the spud.

I Instead of making the spud with three diameters, as shown in Figs. 1,4 and v6, it may be madeof'two diameters as shown in Fig. 5, and in thisinstance, the shank and the flange 13 are of a single diameter andintegral.

For further securing an air-tight and a fluid-tight joint, a washer 14,Fig. 1, of some soft material, may be inter osed between the flan e andthe seat; or as s own in Fig. 6, the spu may be painted with somesuitable substance 15, for the same purpose.

The halves may be nested together for economy in packing andtransporting, and the shells constituting theses halves may be madeplain or corrugated, and their ends formed as in Fig. 1 or Fig. 9; butthe present invention is not limited to the construction of the shellsof the float, and the invention is applicable to floats generally.

he particular construction of shells herein shown, with the provision ofa spud of some sort, constitutes the subject of my patent for tankfloats, dated August 28, 1906 No. 829,554.

What I claim is 1. A tank float, having a number of per forations at'one end, and a spud having a shank provided with a screw-threadedsocket and terminating in a solid head, a spreading flange projectingfrom said head and arran ed outside said float, and a number of solidprojections upon said flange extendin through the erforations in saidfloat an clenched against the inside of said float, Wherebythe spud isprevented from turning with relation to the float in applying andremoving the float rod.

2. A ta'nkfloat, having a number of perforations at one end, acorrespondingly perforated Washer arranged inside the float and next toits perforated end, and a spud having a shank provided with a screwthreaded socket and terminating in a solid head, a spreading flangeprojecting from said head and arran ed outside said float, and'a numberof so id projections upon said flange passing throu h the correspondingperforations in the fl dat and its contained Washer and clenched insideof the float a ainst said washer and adapted to prevent t e turning ofthe spud with relation to the float in applying and removing the floatrod.

3. A tank float, having a number of perforations at one end, acorrespondingly perforated washer arranged inside the float and next toits perforated end, and a spud having a shank provided with a screwthreaded socket and terminating in a solid head, a spreading flangerojecting from said head and arranged outside the float, and a number ofsolid projections on said flange having cupped ends passing through thecorresponding erforations in the float and its contained Washer andclenched inside of the float against said washer and adapted to preventthe turning of the s )Ud with relation to the float in applying andremoving the float rod.

4. A tank float, having a shell provided with a depressed seat, a washerarranged inside the shell next to said seat, said seat and washer beingprovided with registering perforations, and a spud having shank providedwith a screw threaded socket and terminating in a solid head, and aspreading flange projecting from said head to lit in said depressedseat, a packing interposed between sald flange and seat, and a proection on said head extending through the shell into the inside of thefloat and corresponding with and engaging the perforations in the seatand Washer and clenched on the inside of the shell against the washer.

In testimony whereof I have hereunto set my hand this 28th day of AugustA. D. 1905.

FREDERICK M. TEVENS.

l Vitnesses:

' J. H. J?ILLING-, G. F. Houses.

